Optics/mount : 12″ACF 2.7m AP-Reduzer Alt-5 Camera/filters: Atik 11002 AstrodonHa/OIII/SII Exposure:14×600 Ha, 7×600 OIII/SII all 2bin 30 January 2016 Open Cluster NGC 2175 (also known as OCL 476 or Cr 84) is an open cluster in the Orion constellation, embedded in a diffusion nebula. It was discovered by Giovanni Batista […]
